Only 46.7% of entrants at four-year colleges fall in the federal graduation rate. See time to degree and what a fifth or sixth year costs at sticker price.
A provost can quote the graduation rate instantly, but few can say what share of entering students it describes. In the federal Outcome Measures data for the 2015-16 entering cohort, first-time, full-time students, the group the official graduation rate covers, made up 46.7% of entrants at four-year institutions (NCES IPEDS). Across all 3,626 degree-granting institutions, two-year colleges included, the share was 42.4%. Time to degree is reported for that group, and it is where the numbers get expensive.
Here is the direct answer. Among first-time, full-time students who entered the 1,486 four-year institutions we analyzed in fall 2017, 48.7% earned a bachelor's degree in four years and 64.4% within six, so 15.6% of the entering cohort finished in year five or six. That is about 243,000 students at those institutions, and we put a sticker-price cost on their extra years further down. These figures describe our sample, not the nation.
The federal graduation rate lends the number authority, yet it leaves out part-time, transfer and returning students, groups that make up more than half of entrants. IPEDS Outcome Measures reports on every degree- or certificate-seeking entrant, which lets us size what the graduation rate covers. The 2,406 four-year institutions in that file are the closest match to our sample, and the first-time, full-time share serves as our proxy for how much of the entering class the official graduation rate covers. Outcome Measures follows an earlier entering cohort (2015-16) over a longer window than the graduation rate file does, so we use it to size coverage and to compare completion across all entrants, not to restate the fall 2017 rates.
Completion looks different once everyone is counted. At four-year institutions, 43.3% of all entrants had earned a bachelor's degree within six years, against 52.7% of first-time, full-time entrants. Pooled with two-year colleges, where few students earn a bachelor's at the reporting institution, the figures are 28.1% and 37.7%. The rate that appears in rankings and accreditation files describes the students who fit the federal definition, which leaves most other entrants uncounted. For the difference between the rates institutions track, see our explainer on persistence versus retention.
The classic benchmark is four years for a bachelor's degree. Our sample covers 1,554,800 first-time, full-time, bachelor's-seeking students who entered in fall 2017 at four-year institutions with cohorts of at least 100. That is 99.1% of students in bachelor's cohorts nationally, though 518 smaller institutions fall outside it. Of these students, 757,715 finished in four years and 1,000,606 within six, the IPEDS "150% of normal time" window. The rates are 48.7% and 64.4%.
The 15.6 percentage point difference covers 242,891 students: 196,810 who finished in year five and 46,081 in year six. Put another way, 24.3% of everyone who finished within six years took longer than four.
Public institutions in the sample finished 45.9% of their students in four years and 63.3% in six, a gap of 17.4 percentage points. Private nonprofits reached 55.9% and 68.1%, a 12.2 point gap. Publics enroll 67% of the sample's cohort but account for 75% of its late finishers (182,046). Enrollment size shows the clearest pattern. The gap climbs from 9.0 percentage points at institutions under 1,000 students to 17.7 at 20,000 and above.
IPEDS carries no data on majors, course availability or credits, so these patterns are descriptive. Why larger institutions see more late finishers is a question the data cannot answer. Plausible explanations, such as late major changes or transfer credit that does not apply, would need each institution's own records to test. Our post on credit momentum looks at one measure of pace, and the arithmetic in how many credits to take per semester shows how a light term adds up.
The dollar figures rest on published prices, so definitions matter. We used 2023-24 in-state tuition and required fees from IPEDS, which is the billed sticker price. It leaves out room and board and books, ignores grant aid, and uses the in-state rate even at public institutions where some students pay more. The cohort itself paid 2017 to 2023 prices, so applying 2023-24 sticker prices to their extra years overstates what they historically paid.
With those limits, the student-weighted average across 1,480 sample institutions with published charges is $21,742 per year, with $11,246 at publics and $44,259 at private nonprofits. For one student, an extra year therefore adds about that much in billed tuition and fees before aid. We have not totaled the cost across the whole cohort, because aid, part-time final terms and changing prices make a national sum unreliable. For what families pay after aid, the College Scorecard net price is the better source. Forgone earnings from finishing later are not measured here.
Some students counted as non-completers finished elsewhere, so the 35.6% who did not earn a bachelor's degree where they started within six years is an upper bound on non-completion. Our student retention rate guide covers how the related rates are built. Institutions reported transfer-outs equal to 12.3% of the cohort, but 492 of the 1,486 institutions (33%) have no transfer-out record, so that figure understates transfer. Transfer-out is also reported only by institutions whose mission includes preparing students for transfer.
This cohort entered in fall 2017 and reached its six-year mark in 2023, so it reflects students from a few years ago, and this analysis uses the 2023 IPEDS release. A current cohort may look different, which makes running the same calculation on your own students worthwhile.
We downloaded four public files from the NCES IPEDS Data Center: Graduation Rates 2023, Outcome Measures 2023, and the 2023 institutional directory and price files. The four-year rate is bachelor's completers within four years divided by the adjusted first-time, full-time bachelor's cohort, and the six-year rate uses completers within 150% of normal time. IPEDS leaves out a row when a count is zero, so blank year-five and year-six counts became zeros, a choice we checked against the six-year totals. Sticker prices are each institution's 2023-24 in-state tuition and required fees. Group rates add up completers and cohorts across institutions. We can share the full methodology on request.
A sample this size shows where the typical institution stands. Set these sample figures beside your own records to see how your institution compares. If you want to see where your own students slip past four years, we would be glad to show you what your own students' pace looks like in Stellic. Request a demo to set up a time.
Among first-time, full-time students who entered four-year institutions in fall 2017, 48.7% finished a bachelor's degree in four years and 64.4% within six. Some of the rest transferred or were still enrolled at the six-year mark. The figures come from the NCES IPEDS Graduation Rates file for 2023.
In our sample of 1,486 four-year institutions it was 48.7%, though a specific school's rate is the better guide.
At 2023-24 in-state sticker prices it averages roughly $11,200 at public institutions and $44,300 at private nonprofits, before housing, books and aid. The College Scorecard net price is the better guide for a specific school.
The official rate counts only first-time, full-time students who start in the fall. At four-year institutions that group was 46.7% of entrants in the 2015-16 Outcome Measures cohort, and 42.4% when two-year colleges are pooled in, so part-time, transfer and returning students sit outside it. Outcome Measures reports on those groups separately, which is how we could size the gap.
In the federal graduation rate, effectively yes. Students who transfer out count as non-completers at the school they left, even if they finish a degree elsewhere. In reality, many of them do finish, so a low rate can hide students who graduated somewhere else.
